ANVER Vacuum Cups and Suction CupsModel: Flat F20-P60Part Number: A-F20-P60 ANVER and P-Series Description and Part No. Connection Thread Size Static Diameter * Static Height * Load Capacity* at 24 in. Hg (609.6mm Hg)[2:1 Safety Factor] Pull-Off Capacity at 27 in. Hg (685.8mm Hg)[1:1 Safety Factor] Level Compensator Suspensions (Click Image for More Info) F20-P60(Thermo-elastic Polyurethane) N/A 0.87 in. (22.1 mm) 0.30 in. (7.6 mm) 1.87 lbs (0.8 Kg) 4.2 lbs (1.91 Kg)